[dominik523]

First of all, string[1024] is a really big mistake that you are making. SendClientMessage can only send 144 characters, so you are creating way too big string.
CreatePlayerMeString would work like this.

Код:

CMD:me(playerid, params[])
{
	new string[128];
	format(string, sizeof(string), "%s", CreatePlayerMeString(playerid, params);
	SendClientMessage(playerid, -1, string);
	return 1:
}

You need to use it with format because it will return a string. You tried to store that string into an integer, which won't work.